Turnaround Time of Acute Multi-Modal Stroke Imaging Should Not Be More Than 11 Minutes

Abstract Background: Multimodal stroke imaging (Non-contrast CT, CT perfusion and CT angiogram) is essential to acute stroke assessment, there is currently no benchmark for this key process from real world data. Methods: Retrospective review of the turnaround time of consecutive multimodal imaging performed for acute stroke assessment at two high volume stroke centers in Australasia from July to September 2019.Results: 252 imaging studies were included from both sites. The overall median time from acquisition to imaging availability was 13 minutes (IQR 11- 16). The median for Christchurch and Box Hill were 11 minutes (IQR 10 – 12) and 15 minutes (IQR 13 – 19) respectively. Conclusions: Multimodal stroke imaging turnaround time of 11 minutes is a reasonable benchmark.